The water vapor transmission rate of the pure CS membrane was higher than that of the CS/SF blending membrane and it was decreased with the increasing ratio of SF. ADA fixed membrane showed the lowest water vapor transmission, which is approximately 0.385 of the blank group. According to the literature, human skin transpires water vapor at a rate ranging between 240 and 1920 g/m2 × 24 h, whereas the water vapor transmission rate of uncovered wounds could be in the order of 4800 g/m2 × 24 h [19].